PEP 809: Add Discussions-To link (#4616)

Author: zooba

peps/pep-0809.rst

@@ -1,12 +1,14 @@
 PEP: 809
 Title: Stable ABI for the Future
 Author: Steve Dower <steve.dower@python.org>
-Discussions-To: Pending
+Discussions-To: https://discuss.python.org/t/104073
 Status: Draft
 Type: Standards Track
 Requires: 703, 793, 697
 Created: 19-Sep-2025
 Python-Version: 3.15
+Post-History:
+  `30-Sep-2025 <https://discuss.python.org/t/104073>`__,
 
 Abstract
 ========